161221620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:254

約数の個数: 192

約数和(自身を含む): 539320320

約数和(自身を除く): 378098700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 79, 84, 86, 105, 113, 129, 140, 158, 172, 210, 215, 226, 237, 258, 301, 316, 339, 395, 420, 430, 452, 474, 516, 553, 565, 602, 645, 678, 790, 791, 860, 903, 948, 1106, 1130, 1185, 1204, 1290, 1356, 1505, 1580, 1582, 1659, 1695, 1806, 2212, 2260, 2370, 2373, 2580, 2765, 3010, 3164, 3318, 3390, 3397, 3612, 3955, 4515, 4740, 4746, 4859, 5530, 6020, 6636, 6780, 6794, 7910, 8295, 8927, 9030, 9492, 9718, 10191, 11060, 11865, 13588, 14577, 15820, 16590, 16985, 17854, 18060, 19436, 20382, 23730, 23779, 24295, 26781, 29154, 33180, 33970, 34013, 35708, 40764, 44635, 47460, 47558, 48590, 50955, 53562, 58308, 62489, 67940, 68026, 71337, 72885, 89270, 95116, 97180, 101910, 102039, 107124, 118895, 124978, 133905, 136052, 142674, 145770, 170065, 178540, 187467, 203820, 204078, 237790, 249956, 267810, 285348, 291540, 312445, 340130, 356685, 374934, 383861, 408156, 475580, 510195, 535620, 624890, 680260, 713370, 749868, 767722, 937335, 1020390, 1151583, 1249780, 1426740, 1535444, 1874670, 1919305, 2040780, 2303166, 2687027, 3749340, 3838610, 4606332, 5374054, 5757915, 7677220, 8061081, 10748108, 11515830, 13435135, 16122162, 23031660, 26870270, 32244324, 40305405, 53740540, 80610810, 161221620]

約数ペア:

[(1, 161221620), (2, 80610810), (3, 53740540), (4, 40305405), (5, 32244324), (6, 26870270), (7, 23031660), (10, 16122162), (12, 13435135), (14, 11515830), (15, 10748108), (20, 8061081), (21, 7677220), (28, 5757915), (30, 5374054), (35, 4606332), (42, 3838610), (43, 3749340), (60, 2687027), (70, 2303166), (79, 2040780), (84, 1919305), (86, 1874670), (105, 1535444), (113, 1426740), (129, 1249780), (140, 1151583), (158, 1020390), (172, 937335), (210, 767722), (215, 749868), (226, 713370), (237, 680260), (258, 624890), (301, 535620), (316, 510195), (339, 475580), (395, 408156), (420, 383861), (430, 374934), (452, 356685), (474, 340130), (516, 312445), (553, 291540), (565, 285348), (602, 267810), (645, 249956), (678, 237790), (790, 204078), (791, 203820), (860, 187467), (903, 178540), (948, 170065), (1106, 145770), (1130, 142674), (1185, 136052), (1204, 133905), (1290, 124978), (1356, 118895), (1505, 107124), (1580, 102039), (1582, 101910), (1659, 97180), (1695, 95116), (1806, 89270), (2212, 72885), (2260, 71337), (2370, 68026), (2373, 67940), (2580, 62489), (2765, 58308), (3010, 53562), (3164, 50955), (3318, 48590), (3390, 47558), (3397, 47460), (3612, 44635), (3955, 40764), (4515, 35708), (4740, 34013), (4746, 33970), (4859, 33180), (5530, 29154), (6020, 26781), (6636, 24295), (6780, 23779), (6794, 23730), (7910, 20382), (8295, 19436), (8927, 18060), (9030, 17854), (9492, 16985), (9718, 16590), (10191, 15820), (11060, 14577), (11865, 13588)]